I have been told that I will need a swirl chamber in the fuel tank if I fit a turbo. Is this necessary or can I get away with a normal injection fuel pump? The engine is Lancia 2.0L Turbo and the fuel pump is from a 2.8L Capri injection?
Nick

what did the Lancia have as standerd ?

Have a word with Jame's "Hicost" he runs serious turbo.......

Is your engine running now? Then why bother?

If it isn't, then a standalone surge pot (rarther than swirl pot, if you are worrying about starvation) would be a good idea. Is your fuel pump in tank or external? Most intank pumps usually have a little sump 'dimple' in the bottom of the tank to ensure that there is always fuel available to the pump. A surge pot would do the same function if you are feeding it low pressure and have the main pump feeding out of it.

A swirl pot normally just de-aerates the fuel (by the means of a cylindrical tank) to get the air outta the way (technical term)

IYSWIM

The engine isn't in the car yet but I need to finish the tank. The lancia one had a pump in the tank with a large cylindrical chamber round it, which I still have. Do I have to use a similar system to that or could I still get away with the dimple you mentioned?

The cylindrical tank was a built in surge pot (keeps a reserve of fuel available to the pump during cornering). You're probably better off replicating what the Lancia had. You could use the dimple, but I'd prefer the cylinder welded to the bottom of the tank, with cut-outs around the base of it.

Sounds like an idealsetup to me.

Think of your tank like ur sump if u coner hard the fuel goes to one side if and loses pressure if it goes away from the lifter pump the same way u can lose oil pressure. only now youll get a miss fire.
the problem is that when a car loses fuel pressure it goes lean and runs hotter and can cause detonation add that to a turbo which is already running hotter you get problems with real bad detonation which can then lead to melted pistons or can cause the turbo to heat up and warp the shaft or melt the impellors.
so basically u need some system (any system) to make sure your pump doesnt suck air when cornering hard (or donuting)in the wrong direction.

Thanks for all that. I will try and adapt the Lancia system; it is about the same depth as the half built tank. If it won't fit or takes too much room I may have to build a bigger tank. As it is I will probably be refuelling every 100 miles or so with the consumption on this one!
If it all works I will post some pics of it, but don't hold your breath!
Nick

This Lancia one is integral with it's own swirl chamber, if it was good enough for the Thema then it should be good enough for me.
It has a single inlet hole in the bottom about 6mm I take it I should have this pointing to the rear of the car to stop fuel escaping under G?
Nick

I'd probably have a couple of holes in the cylinder (at 1,5,7,and 11 o'clock).

Hicost, I'd probably say 1.5litres is a bit small for a surge pot, my V8 has a two litre tank, and my favourite bit of road can have it coughing and spluttering at high speed.......